Sept. 12: Lenny Williams at Main Street Park in American Canyon

I’ve seen Tower of Power five times with almost as many different singers over the years, and I’ve always felt really sorry for whoever’s on vocal duties. After all, he’s got to live up to Lenny Williams, the group’s legendary vocalist who laid it down on “What Is Hip?,” “So Very Hard to Go” and “Soul Vaccination.” Now age 64, Williams, whose 1970s slow jam “’Cause I Love You” is still one of the best make-out songs to ever come out of the Bay Area, makes only sporadic appearances. Those wondering “Where is he now?” will have their answer when Williams headlines the American Canyon Community Music Festival, near the Wal-Mart shopping center. Consorcio Jazz, Leroy Rodrigues and the Bay Area Blues Band warm things up for the love-song belter on Saturday, Sept. 12, at Main Street Park. 5050 Main St., American Canyon. Noon–6pm. Free. 707.319.4773.Gabe Meline